Graham Potter was unhappy with the award of two late penalties against his Swansea City at Rotherham, but says the blame for defeat has to rest with his players rather than referee Tony Harrington.

The Swans had looked to be on course for a third-consecutive win when Oli McBurnie put them ahead in the 25th minute and they enjoyed total control of the contest for the majority of the afternoon.

But they did not take chances to add a second goal - with Bersant Celina and Leroy Fer among those to spurn opportunities - before a chaotic finale saw them leave South Yorkshire with nothing.

First, Kristoffer Nordfeldt hesitated as a high ball caught on the wind, allowing it to bounce and being penalised for a challenge with striker Jamie Proctor.

Then skipper Leroy Fer was adjudged to have handled as a sliced Will Vaulks shot came through a crowd of players at him.

Ryan Manning tucked away the two spot-kicks, Nordfeldt getting a hand to the first but not the second, to condemn the visitors to a painful defeat.

The second penalty incident involving Leroy Fer of Swansea

Potter had doubts about both decisions, feeling that Proctor had been offside in the lead up to the first penalty incident, and that Fer's reaction was purely instinctive as the ball flew towards his head from a short distance.

"I have not seen them back. The first one, the boy is offside to start with and then I am not so sure (it was a penalty) from where I was. It did not look like there was too much in it," said Potter.

"The second one, I can see why he has given it but the ball has been hit so hard so close to Leroy it is just a reaction to protect his face.

"I don't think he has made himself any bigger, and that's the rule, you have to make yourself bigger. I do not think he has done that.

"The easy option is to blame some ody you can't control. The reality is we need to learn to be more clinical and put the game to bed and turn the superiority in our play into goals because that's what it's about."

He added: "We did not score the second goal. Whilst it's 1-0 you leave yourself open to anything and that proved the case.

"The only criticism I could have is we did not attack as well as we could in the second half, as clinically as we would like.